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Jeep
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2021
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Cherokee Latitude Plus, FWD
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Repair and Diagnosis
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Engine Performance
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System
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2.4L - DTCS B1810 To P0197
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DTC Troubleshooting
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P0038-O2 Sensor 1/2 Heater Circuit High
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects an open (heater resistance 40 ohms or more) in the Oxygen Sensor 1/2 heater control circuit for at least 2.16 seconds.